Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – From phosphorus-containing reactant
Patent
1994-04-15
1995-11-07
Dodson, Shelley A.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
From phosphorus-containing reactant
524600, 524606, 524608, 528168, 528169, C08G 7902
Patent
active
054649323
ABSTRACT:
Chalcone and cinnamate bearing polyphosphazenes are disclosed. The polyphusphazenes contain a sufficient number of chalcone or cinnamate groups, or a combination thereof, to achieve a photocrosslinkable material. The phosphazene backbone is transparent from the near and mid-UV to the near infrared region, minimizing degradation of the skeleton both under the high intensity UV irradiation required for the photo-crosslinking reaction and during subsequent exposure to light disclosed. These photosensitive polyphosphazenes are useful for a variety of purposes, including in photolithography, photocurable coatings, for the stabilization of certain non-linear optical properties, and for use in the construction of biocompatible semi-permeable membranes which can be used to encapsulate living cells or other substances of implantation.
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Allcock, H. R., "A New A
Allcock Harry R.
Cameron Charles G.
Smith Dawn E.
Dodson Shelley A.
The Penn State Research Foundation
Zalesky Cheryl K.
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